I haven't checked out the link but I'm confused. Is this some proprietary software meant to read/write WAV files from the internal hard drive on one particular Yamaha CD burner?
That's great for use with that particular burner, but is entirely unnecessary. Any $30 DVD rom drive for your computer can rip the audio tracks off a CD and every audio editor, cd burning program, or media manager type program can convert that raw PCM data into WAV, MP3, WMA or whatever format you want - it just won't be able to write it to disc inside the Yamaha burner unless that device can be mounted as an external drive (which it probably can't - hence the need for this proprietary solution).